A product cutter that includes a plurality of blades, a conveyer, a cutting adjustment assembly and a frame is provided. The plurality of blades are designed to cut an elongated product into a plurality of cut product portions having generally equal lengths. The plurality of blades includes a pair of outer blades and at least one inner blade positioned between the outer blades. The conveyor is used to move the elongated product to the blades. The cutting adjustment assembly is configured and arranged to adjust distances between the respective blades while maintaining cut product portions of generally equal lengths. The at least one inner blade is held stationary in relation to the conveyer during activation of the cutting adjustment assembly. The frame is configured and arranged to hold at least the plurality of blades and the cutting adjustment assembly.
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1. A product cutter comprising:
a plurality of blades to cut an elongated product into a plurality of cut product portions of generally equal lengths, the plurality of blades including a pair of outer blades and at least one inner blade positioned between the outer blades;
a conveyor to move the elongated product to the blades;
a cutting adjustment assembly configured and arranged to adjust distances between the plurality of blades while maintaining the cut product portions in generally equal lengths, such that one of the at least one inner blade is held stationary in relation to the conveyer during activation of the cutting adjustment assembly while the remaining blades of the plurality of blades are synchronously moved with a single adjustment that positions the plurality of blades in relation to each other to cut the product in the generally equal lengths;
wherein the cutting adjustment assembly further comprises an adjustment wheel; a gear set in rotational communication with the adjustment wheel such that when the adjustment wheel is rotated the gear set rotates; a plurality of adjustment shafts rotationally coupled to the gear set, each adjustment shaft having at least one outer threaded portion; and a plurality of adjustment members, each adjustment member having a first end that is threadably engaged with an outer threaded portion of an associated adjustment shaft, at least two of the adjustment members having a second end coupled to an associated blade;
the gear set further including, a first gear having a first diameter, the first gear rotationally coupled to the adjustment wheel, a second gear having a second diameter, the second gear rotationally engaged to the first gear, and a third gear having a third diameter, the third gear rotationally engaged to the second gear, the first diameter of the first gear being different than the second diameter of the second gear and the third diameter of the third gear, further the second diameter of the second gear being different than the third diameter of the third gear; and the plurality of adjustment shafts further including, a first adjustment shaft rotationally coupled to the first gear, the first adjustment shaft having at least two spaced first and second outer threaded portions, a second adjustment shaft rotationally coupled to the second gear, the second adjustment shaft having at least two spaced third and fourth outer threaded portions, and a third adjustment shaft rotationally coupled to the third gear, the third adjustment shaft having at least two spaced fifth and sixth outer threaded portions;
and a frame configured and arranged to hold at least the plurality of blades and the cutting adjustment assembly.
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Food products are typically sold to consumers by providing a select amount of product per product package. To automate the process of packaging products, automated product sizing machines have been developed to produce consistent product sizes to be placed in product packages. An example of an product sizing machine is a cutting machine that cuts a product to a size that has a select weight. For some products, variation between product batches makes it difficult to cut the product to a size that has a consistent weight between batches.
For the reasons stated above and for other reasons stated below which will become apparent to those skilled in the art upon reading and understanding the present specification, there is a need in the art for a device that effectively and efficiently can be adjusted to account for variations in product batches to achieve consistent product weights.
The above-mentioned problems of current systems are addressed by embodiments of the present invention and will be understood by reading and studying the following specification. The following summary is made by way of example and not by way of limitation. It is merely provided to aid the reader in understanding some of the aspects of the invention.
In one embodiment, a product cutter is provided. The product cutter includes a plurality of blades, a conveyer, a cutting adjustment assembly and a frame. The plurality of blades are designed to cut an elongated product into a plurality of cut product portions having generally equal lengths. The plurality of blades includes a pair of outer blades and at least one inner blade positioned between the outer blades. The conveyor is used to move the elongated product to the blades. The cutting adjustment assembly is configured and arranged to adjust distances between the respective blades while maintaining cut product portions of generally equal lengths. The at least one inner blade is held stationary in relation to the conveyer during activation of the cutting adjustment assembly. The frame is configured and arranged to hold at least the plurality of blades and the cutting adjustment assembly.
In another embodiment, yet another product cutter is provided. The product cutter includes a blade drive shaft, a plurality of blades, an adjustment assembly and a product guide. The blade drive shaft motor is coupled to rotate the blade drive shaft. The plurality of blades are received on the blade drive shaft. Each blade is configured and arranged to lock onto the rotation of the blade drive shaft. The plurality of blades include a pair of outer blades and a plurality of inner blades positioned between the pair of outer blades. The inner blades include a static blade that is configured and arranged to remain at a static location in relation to the blade drive shaft. An adjustment assembly is configured and arranged to move the pair of outer blades and at least one inner blade along a length of the blade drive shaft to adjust cut locations of an elongated product. The product guide is configured and arranged to engage an end of the elongated product in order to position the elongated product in relation to the plurality of blades. The adjustment assembly is configured and arranged to move the product guide when the adjustment assembly moves the pair of outer blades and the at least one inner blades along the length of the blade drive shaft.
In another embodiment, yet still another product cutter is provided. The product cutter includes a blade drive shaft, a blade drive shaft motor, a plurality of blades, and an adjustment assembly and a product guide. The blade drive shaft motor is coupled to rotate the blade drive shaft. The plurality of blades are received on the blade drive shaft. Each blade is configured and arranged to lock onto the rotation of the blade drive shaft. The plurality of blades including a pair of outer blades and a plurality of inner blades are positioned between the pair of outer blades. The inner blades include a static blade that is configured and arranged to remain at a static location in relation to the blade drive shaft. The adjustment assembly is configured and arranged to move the pair of outer blades and at least one inner blade along a length of the blade drive shaft to adjust cut locations of an elongated product.
The adjustment assembly includes an adjusting wheel, a first gear, a first adjusting shaft, a second gear, a second adjusting shaft, a third gear, a third adjusting shaft and a blade adjusting member for each of the pair of outer blades and the at least one inner blade. The adjustment wheel is configured and arranged to be rotated by an operator. The first gear has a first diameter and is rotationally coupled to the adjustment wheel. The first adjustment shaft is rotationally coupled to the first gear. The first adjustment shaft has at least two spaced opposably orientated first and second outer threaded portions. The second gear has a second diameter. The second gear is rotationally engaged to the first gear. The second adjustment shaft is rotationally coupled to the second gear. The second adjustment shaft has at least two spaced opposably orientated third and fourth outer threaded portions. The third gear has a third diameter and is rotationally engaged to the second gear. The first diameter of the first gear is different than the second diameter of the second gear and the third diameter of the third gear and the second diameter of the second gear is different than the third diameter of the third gear. The third adjustment shaft is rotationally coupled to the third gear. The third adjustment shaft has at least two spaced opposably orientated fifth and sixth outer threaded portions. The blade adjustment members are configured and arranged to move associated blades along the length of the blade drive shaft. Each adjustment member has a first portion that is threadably engaged with an outer threaded portion of an associated one of the first, second and third adjusting shafts and a second portion coupled to an associated blade. A product guide is configured and arranged to engage an end of the elongated product to position the elongated product in relation to the plurality of blades. The adjustment assembly is configured and arranged to move the product guide when the adjustment assembly moves the pair of outer blades and the at least one inner blade along the length of the blade drive shaft.
The present invention can be more easily understood and further advantages and uses thereof will be more readily apparent, when considered in view of the detailed description and the following figures in which:
In accordance with common practice, the various described features are not drawn to scale but are drawn to emphasize specific features relevant to the present invention. Reference characters denote like elements throughout Figures and text.
In the following detailed description, reference is made to the accompanying drawings, which form a part hereof, and in which is shown by way of illustration specific embodiments in which the inventions may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention, and it is to be understood that other embodiments may be utilized and that changes may be made without departing from the spirit and scope of the present invention. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the present invention is defined only by the claims and equivalents thereof.
Embodiments of the present invention provide a product cutter 100 that is designed to cut an elongated product into cut product portions with a plurality of blades 104-1 through 104-6. In embodiments of the present invention, spacing between the blades 104-1 through 104-6 can be simultaneously adjusted to cut multiple uniform lengths from the elongated product. An example of an elongated product includes, but is not limited to, pepperoni sticks. In the pepperoni example, the manufacturing variables may cause the same lengths of products made from different batches to be of different weights. Hence, an effective way to change the lengths of cuts to the elongated product is needed.
An embodiment of the product cutter 100 is illustrated in
The product cutter 100 includes a conveyor system 120. The conveyor system 120 includes a plurality of spaced conveyor tracks 123 that extends between a conveyor drive shaft (not shown) and a front rotating conveyor shaft 122 illustrated in
The blades 104-1 through 104-6 are rotationally coupled to a blade drive shaft 106. Blade drive shaft 106 is rotationally coupled to the frame 200 via spaced blade bearing assemblies 103 and 105. An end of the blade drive shaft 106 is rotationally coupled to a blade motion transfer assembly 152. A blade motor 150 provides rotational movement for the blade motion transfer assembly 152 which rotates the blade drive shaft 106. Blades 104-1, 104-2, 104-4, 104-5 and 104-6 each have a central passage (not shown) that are shaped to lock on to the cross-sectional shape of the blade drive shaft 106 to lock rotation of the blades 104-1, 104-2, 104-4, 104-5 and 104-6 with the rotation of the blade drive shaft 106 while allowing transverse movement relative to the rotational axis of the blade drive shaft 106 along a length of the blade drive shaft 106. Although, blades 104-1, 104-2, 104-4, 104-5 and 104-6 can move transverse to the rotational axis of the blade drive shaft 106, blade 104-3, in the embodiment shown, is coupled in a static position proximate a central support plate 115. Although, blade 104-3 is locked onto the rotation of the blade drive shaft 106, it is held in the static location in relation to the drive shaft 106 via the coupling to the central support plate 115. As illustrated in the top view of
Blades 104-1, 104-2, 104-4, 104-5 and 104-6 are each coupled to a respective blade adjustment member 108-1, 108-2, 108-4, 108-5 and 108-6. The blade adjustment members 108-1, 108-2, 108-4, 108-5 and 108-6 selectively move the blades 104-1, 104-2, 104-4, 104-5 and 104-6 along the length of the blade drive shaft 106. Each of the blade adjustment members 108-1, 108-2, 108-4, 108-5 and 108-6 includes a base guide portion 108a that includes a passage (not shown) that receives a guide rod 118. The guide rod 118 is coupled across a width of the frame 200. Each blade adjustment member 108-1, 108-2, 108-4, 108-5 and 108-6 further includes a blade attaching portion 108c that extends from the base guide portion 108a. The blade attaching portion 108c is coupled to a respective blade 104-1, 104-2, 104-4, 104-5 and 104-6. Each blade adjustment member 108-1, 108-2, 108-4, 108-5 and 108-6 further includes an adjustment shaft attaching portion 108b that extends from the base guide portion 108a in an opposite direction as the blade attaching portion 108c. Each adjustment shaft attaching portion 108b includes a threaded inner passage (not shown) that threadably engages outer threads on respective adjusting shafts 110, 112 and 114 described below.
In the embodiment of the product cutter 100 shown in
The second adjustment shaft 112 includes a first threaded portion 112a and a second threaded portion 112b. The inner threads of the adjustment shaft attaching portion 108b of the first blade adjustment member 108-1 is threadably coupled to the first outer threaded portion 112a of the second adjustment shaft 112. The inner threads of the adjustment shaft attaching portion 108b of the fifth blade adjustment member 108-5 is threadably coupled to the second outer threaded portion 112b of the second adjustment shaft 112. Similar to the outer threaded portions 110a and 110b discussed above, the outer threaded portions 112a and 112b are oppositely oriented such that when the second adjustment shaft 112 is rotated the first and fifth blades 104-1 and 104-5 move either away from each other or towards each other depending on the rotation direction of the second adjustment shaft 112.
The third adjustment shaft 114 includes a first threaded portion 114a and a second threaded portion 114b. The inner threads of the adjustment shaft attaching portion 108b of the second blade adjustment member 108-2 is threadably coupled to the first outer threaded portion 114a of the third adjustment shaft 114. The inner threads of the adjustment shaft attaching portion 108b of the fourth blade adjustment member 108-4 is threadably coupled to the second outer threaded portion 114b of the third adjustment shaft 114. Similar to the outer threaded portions 110a and 110b and 112a and 112b discussed above, the outer threaded portions 114a and 114b are oppositely oriented such that when the third adjustment shaft 114 is rotated, the second and fourth blades 104-2 and 104-4 move either away from each other or towards each other depending on the rotation direction of the second adjustment shaft 114. As discussed above, the third blade 104-3 is coupled to the central support plate 115 and does not move along a length of the blade drive shaft 106. Hence the third blade 104-3 is held stationary in relation to the frame 200 and conveyer 120.
The first, second and third adjustment shafts 110, 112 and 114 are selectively rotated by a gear set 130. The gear set 130, in the embodiment illustrated in
The gear set 130 is coupled to a wheel motion transfer assembly 144. In particular, the first gear 132 is rotationally coupled to the wheel motion transfer assembly 144. An adjusting wheel 140 is used by an operator to activate the gear set 130 to move the blades 104-1, 104-2, 104-4, 104-5 and 104-6 and the product guide 116. The adjusting wheel 140 is coupled to the gear set 130 via first adjustment rod 142 and second adjustment rod 143 that are coupled together via pivot coupler 141. In particular, a first end of the first adjustment rod 142 is coupled to the adjustment wheel 140 and a second end of the first adjustment rod 142 is coupled to the pivot coupler 141. A first end of the second adjustment rod 143 is coupled to the pivot coupler and a second end of the adjustment rod 143 is coupled to rotate the wheel motion transfer assembly 144. Hence, embodiments include a cutting adjustment assembly 101 that includes at least the blade adjustment members 108-1, 108-2, 108-4, 108-5 and 108-6, the product guide adjustment member 107, the first, second and third adjusting shafts 110, 112 and 114, the gear set 130 and the adjusting wheel 140. Referring back to
In operation, elongated products (such as pepperoni sticks) are placed in the respective rows formed by the divider tabs 120 on the conveyer tracks 123 with an end of each elongated product abutting the product guide 116. The conveyer tracks 123 then bring the elongated products to the blades 104-1 through 104-6. The blades 104-1 through 104-6 then cut each elongated product into cut product portions. The operator then weighs the cut product portions to determine if their weights are within a desired weight range for a cut product portion. If the cut product portions are not within the desired weight range, the product cutter 100 needs to be adjusted. The product cutter 100 is adjusted by rotating the adjusting wheel 140 which in turn rotates the gear set 130 which further in turn synchronously adjusts the spacing between the product guide 116 and the blades 104-1 through 104-6. As discussed above, adjustment of spacing is accomplished with inner blade 104-3 remaining stationary while the rest of the blades 104-1, 104-2, 104-4, 104-5 and 104-6 and the product guide 116 are moved. Hence, in embodiments, the pair of outer blades 104-1 and 104-6 are moved relative to the conveyer 120 while the inner blade 104-3 remains static in relation to the conveyer 120 when the adjustment assembly 101 is activated. Once, the product cutter 100 is adjusted, another elongated product is cut by the blades 104-1 through 104-6. The operator then once again weighs a cut product portion to see if it is within the desired weight range. If the weight of the cut product portion is not within the desired weight range, the adjusting wheel 140 is again turned and the process continues until the weight of the cut product portion is within the desired weight range. The direction the adjusting wheel 140 is turned depends upon whether the cut product portion weights too much or too little. Once the weight of the cut product portion is within the desired weight range, the product cutter 100 is ready for normal operation. At the start of cutting a new batch of elongated product, the weighing and adjusting procedures discussed above should again be implemented to ensure the weight of the cut product portions are within the desired weight range.
Although specific embodiments have been illustrated and described herein, it will be appreciated by those of ordinary skill in the art that any arrangement, which is calculated to achieve the same purpose, may be substituted for the specific embodiment shown. This application is intended to cover any adaptations or variations of the present invention. Therefore, it is manifestly intended that this invention be limited only by the claims and the equivalents thereof.
Hotek, John P., Olson, Allan D., Filbrandt, Patrick, Solomonson, Matthew L.
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Nov 18 2011 | Hormel Foods Corporation | (assignment on the face of the patent) | / | |||
Dec 05 2011 | FILBRANDT, PATRICK J | Hormel Foods Corporation | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 027446 | /0850 | |
Dec 21 2011 | HOTEK, JOHN P | Hormel Foods Corporation | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 027446 | /0850 | |
Dec 22 2011 | OLSON, ALLAN D | Hormel Foods Corporation | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 027446 | /0850 | |
Dec 22 2011 | SOLOMONSON, MATTHEW L | Hormel Foods Corporation | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 027446 | /0850 |
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